7. What number should replace each x ?
(i) 3 (x + 5) = 3 * 6+3 x 5
(iii) (7 X 8) + (8 x 8) = (7 + 8) x
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Answer:
i 6
Step-by-step explanation:
i) 3( x +5)= 3 * 6+3×5
3x + 15 = 18 +15
3x =18+15-15
3x=18
×=18/3
x=6
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